Asset Retirement Obligations

6 Months Ended

Jun. 30, 2014

Asset Retirement Obligation [Abstract]

The following is a reconciliation of our asset retirement obligations for the six months ended June 30, 2014:



(in thousands)
Asset retirement obligations at beginning of period	$	42,954
Activity during the period:
Liabilities incurred during the period	355
Liabilities settled during the period	(17		)
Adjustment to liability due to divestitures	(9		)
Accretion of discount	1,376
Asset retirement obligations at end of period	44,659
Less current portion	191
Long-term portion	$	44,468

Our asset retirement obligations are determined using discounted cash flow methodologies based on inputs and assumptions developed by management. We do not have any assets that are legally restricted for purposes of settling asset retirement obligations.